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Dunkirk Helix VLT Vertical Laser Tube, Wall Hung Modulating Condensing Boiler User Manual

Page 5

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5

1.1 Designated Use

• Hot water heating boiler.
• Indoor installation.
• Closet or alcove installation.
• Direct vent boiler.
• For use with natural gas or liquefied petroleum gases

(LP/propane).

1.2 The unit MUST NOT:

• Directly heat potable water. Indirect heating is acceptable.
• Heat water with non-hydronic heating system chemicals

present (example, swimming pool water).

• Exceed 150 psig (1.03 MPa) maximum allowable

working pressure.

• Exceed 195°F (90.5°C) system design temperature.

1.3 Operational Features

• Modulating: 20-100%.
• Integral Dual Limit.
• Integral Low Water Cutoff (with test button).
• Outdoor Temperature Reset.
• Integral Multiple Boiler Control.

Check our website frequently for updates: www.ecrinternational.com

Information and specifications outlined in this manual in effect at the

time of printing of this manual. ECR International reserves the right to

discontinue, change specifications or system design at any time without

notice and without incurring any obligation, whatsoever.

1 - INTRODUCTION